Machine for operating upon blanks



Aug. 27, 1929.

E. A. HOLMGREN MACHINE FOR OPERATING UPON BLANKS 5 Sheets-Sheet Filed March 27, 1922 Au 27, lgzs.

v MACHINE FOR OPERATING UPON BLANKS Filed March 27. 1922 Fig. 6.

E. A. HOLMGREN s Sheds-Sheet .2

Fig.5.

1929,v E. A. HOLMGREN 1,725,758

I MACHINE FOR OPERATING UPON BLANKS Aug.

Filed March 27. 1922 3 SheetS-Sheet //vy/v 72751 Patented Aug. 27, 1929.

ERIC A. HOLMGREN, 0F LYNN, MASSACHUSETTS,

ASSIGNOR TO ,U'NI'IED SHOE MACHINERY CQBPOEATION, OF PATERSOIT, NEW JERSEY, A CORPORATION OF NEW JERSEY.

Application filed March 27,

This invention relates to a machine for operating upon blanks and is here1n set forth in connection with a machine for beveling the shank portions of short outsoles and reducing the rear ends of said soles to a uniform thickness.

In the manufacture of shoes it is a common practice to bevel the shank POItIOIIS Of outsoles from the ball line to the breast line of the heel. Since the shapes and sizes of the outsoles vary, it has been a matter of considerable difliculty properly to locate these beveled portions of the shank to prevent the resulting thin edges of the sole from extending forwardly into the forepart or rearwardly into the heel seat, and thus mar-ring the appearance of the shoe. I

One object of the invention, therefore, is to provide improved mechanism for beveling or reducing the shank portions OI shoe soles and accurately locating these reduced portions. the soles are carried by a feed slide to a pressure roll and a matrinroll by whlch the soles are distorted in their passage over a skiving knife. To skive accuratelythe different sizes, mechanism is provided by which the movement of the feed slide can be delayed or advanced relatively to the matrix roll thereby causing the skiving operation to begin at the proper locat1on on the sole. To cause the skiving operation to end at the proper location, a matrix filler is rotatably mounted on the matrix roll and mechanism is provided by which the rotation of thefiller can be controlled to cause the matrix to cease its distortion of the work at a predetermined location and hence stop the beveling action of the knife.

In an application filed June 11, 1921, in the name of George Warren, Serial No. 476,659, there is disclosed a method of making shoes which involves the use of a short molded outsole having a squared-off rear end which fits into a rabbeted heel. The rabbeted portions of all of the heels in this system are of the same depth and the length of the rabbet from front to rear is always the same. Accordingly, to fit the heels, the rear ends of the short outsoles should all be reduced to a uniform thickness for a distance at least as great as the length of the rabbet. It is, therefore, one of the objects In the illustrated construction,

MACHINE F93 OPERATING UPON BLANKS.

1922. Serial No. 547,198.

of this invention to provide improved mechanism for performing this operation.

' In the construction herein shown, the soles are passed to a skiving knife between a pair of rolls having movable bearings. At a predetermined location on the sole, the rolls are depressed causing the knife to cut deeper and to a predetermined and uniform depth. In order that this cut may begin at the proper location, which is at the breast line of the heel, the depressing of the rolls can be delayed in proportion to the delay in the movement of the above-mentioned feed slide which presents the soles to the rolls, said delay in the feed slide being necessitated, as above-described, by the variations in the size, shape, etc. of the soles.

In skiving machines the work is commonly fed between'a pair of rolls behind which is a stationary knife having its cutting edge arranged as closely as possible to the bite of the rolls. Except when therolls are of small diameter, the knife edge has to be placed so far from the bite of the rolls that, as the rear end of the work approaches the knife, the rolls will not have a sufficient grip on the stock to force said rear end against the knife. Another object of the invention, therefore, is to provide improved mechanism for feeding stock against a skiving knife. In the illustrated embodiment, a pusher is rotatably mounted on the matrix roll and is timed to engage the rear edge of the stock before the rolls let go their hold. Preferably the pusher is carried by the matrix filler above mentioned.

' It is desirable to treat right and left soles of a pair simultaneously on the same -ma chine so that they can be reduced uniformly and be kept together for subsequent operations. According to another feature, therefore, the machine is a duplex one with improved means to insure the insertion of the two soles of a pair before the machine can be started. In the construction shown there are two feed slides to carry the work to the rolls, a clutch for connecting a power driving mechanism to the feed slides, and clutch controlling mechanism operable only when both sides are moved a limited distance by hand.

Another object of the invention is to furnish improved means for'aligning the soles with respect to their operating mechanism bers automatically during the actuation of the feed slide.

A still further object is to provide mechanism for skiving the shank portion of a molded sole without deleterious effect due usting gears.

to permanent distortion of the molded contour of the sole. In accordance with this feature, the soles are passed directly from the matrix and pressure roll to a receiver having a sole supporting surface conforming to the original contour of the sole, thus to aid the sole in regaining its shape. To aid further in this action, the soles are then passed upwardly one by one into the bottom of a magazine whereby the weight of all preceding soles tends to maintain the original shape of the subsequent ones.

These and other objects and features of the invention will appear from a consideration of the following specification and drawings of an illustrative construction in which:

Fig. 1 is a side elevation with parts in section of the machine;

Fig. 2 is a detail side elevation of the means for positioning the sole;

Fig. 3 is a detail view of a portion of the roll driving gearing;

Fig. 4 is a detail side elevation of the controlling cam;

Fig. 5 is a front elevation with parts in section;

Fig. 6 is a detail front elevation, partly innsection, of mechanism for depressing the re s;

Fig. 7 is a vertical section of the controlling cam and part of its adjusting mech anism;

Fig. 8 is a detail of the means for slidably connecting the cam shaft to one of the ad Fig. 9 is a-sectional view of the matrix roller and its filler in their relative positions when skiving the rear end of a sole;

Fig. 10 is a similar view with the parts in position for skiving the bevels on the sides of the sole;

Fig. 11 is a detail, in side elevation, of the matrix filler and its actuating means; fillFig. 12 is a perspective view of the matrix Fig. 13 is a bottom plan view of a short outsole indicating the parts which are cut away; and

Fig. 14 is a side elevation of Fig. 18 indicating the purpose of the skiving at the rear end of the sole.

Referring first to Figs. 13 and 14, there is shown a short molded sole blank B having a hole J near its rear end by which the sole may be positioned with reference to different operating instrumentalities. The machine of this invention is intended to skive or otherwise reduce the shank from the ball line rabbet of aheel H. This machine is a duplex 8 one, that is, two soles, aright and a left, are treated simultaneously so that they may be reduced alike and kept together. Each sole is fed by a slide between a pressure roll and a matrix roll which carry it against askiving knife. The matrix causes a distortion of the sole so that the knife bevels the edges. At a predetermined point in the length of the sole, the matrix becomes inoperative, and the rollers are depressed thereby causing the rear end of the sole to be skived off to a uniform thickness. From the knife, the sole passes to a receiver having the same contour as the sole and then is carried beneath a mag azine and ejected into the latter. As the immediate sole engaging parts on the two sides of the machine are alike, the description will be largely confined to one set of said parts.

Mounted to slide in ways 12 in the frame are two feed slides 14 having locating pins 16 projecting upwardly to engage the holes in the soles. Each feed slide is connected by a link 18 to a vertical arm 20 the hub 22 of which is loose on the rock shaft 24. The arm 20 passes loosely between forks 26 formed on the upper end of the driving arm 28 which is fixed to the rock shaft 24. A spring 30 normally tends to keep the arm 20 pressed against one of the forks 26, the space between the arm and the other fork allowing for lost motion of the arm which is utilized in connecting up the power driving mcchanism to actuate the feed slide. Projecting from each arm 20 is a lug 32 which normally overlies a dog 34 on a member which swings on the rock rod 36. Connected to one of the dogs 34 is a long bent link 38, the lower end of which is connected pivotally to the lower arm 40 of a three-arm lever fixed to a rock rod 42. The spring 44 attached to the frame and to one of the arms of the three-arm lever constantly tends to move the bent link 38 longitudinally and the dog 34 against its lug 32. An upright arm 46 secured to the rock rod 42 carries a clutch pin 48 which operates a one-revolution clutch on the driven shaft 50 when such action is permitted by limited movement of the feed slides. When both feed slides are moved forwardly a limited distance so that the lugs 32 pass over the ends of the connected dogs 34, the spring 44 swings the arm 46 and withdraws the clutch pin 48 thereby starting the action of the one revolution clutch. At the same time a roller on the arm 52 swings against a cam surface 54 which, due to the rotation of the driven shaft, ultimately swings the arm and thereafter the dogs 34 back into their normal positions below the lugs 32 as the latter are returned to their normal positions. The shaft has a worm wheel 56 driven by a worm on the shaft 58 which is driven by a belt 59, and it is with this worm wheel that the shaft 50 is connected. for a single revolution.

To connect the driven shaft 50 with the feed slides, a 60 on the shaft meshes 'ith a similar gear 62 on a counter shaft 64 mo unted in the frame. To this counter shaft is secured a wide spiral gear 66 which drives an axially adjustable spiral gear 68 on a cam shaft 70 having a cam disk 72 which controls the operation of several dependent mechanisms. AS shown in Figs. 7 and 8, the spiral gear 68 has an integral sleeve 69 which is cut away for a portion of its length, and on the cam shaft- ?0 is a corresponding iiat portion to which is secured the plate 71. This construction secures the gear slidably to the shaft. The cam disk 72 is keyed to its shaft and is adjusted angularly with said shaft. This is accomplished by sliding the spiral gear 68, angular movement being imparted at the same time by the spiral teeth on the wide gear 66. This mechanism is to change the time of the cam and will be hereinafter referred to. In one face of the cam disk is a cam. groove 74 engaged by a roller on the horizontal arm of a bell crank lever 7 6 which is pivoted at 7 8 to the frame work and has on its vertical arm a segmental gear meshing with a segmental gear 82 carried by a hub 84 fixed on the rock shaft 24. Rotation of the cam disk 7 2 causes an oscillation of the bell crank lever 76, the shaft 24 and the rock arm 28 which actuates the two feed slides.

To line up a sole with its matrix or other operating mechanism, it is placed on the 10- cating pin 16 and thereafter a swinging member 90, comprising spaced-apart fingers the forward edges of which lie on a line parallel to the axis of the matrix roll, swings against the straight rear edge of the sole. lhe swinging movement of the member around its pivot 92 is controlled during the movement of the feed slide by a cam 94 on the frame along which runs a roller on an arm connected to the member 90, the roller being kept in engagement with the cam by a spring 96. Pin 16 is normally kept in a raised position by a spring pressed plunger 08 engaging a notch in the side of the pin. The pin is withdrawn from the hole after the feed rollers have gripped the stock. This is accomplished by interengaging teeth on the pin and on the arm 102. of a bell crank lever pivoted at to the feed slide, a vertical arm 104 on the bell crank having an adjusting screw 106 which engages a stop pin 108 secured to the frame work, during the forward movement of the slide. Upon the return movement of the slide, the arm 10%.- engages an adjusting screw 110 fixed to the frame work causing the pin again to be projected into sole receiving position.

As the work passes from the matrix roll and the skiving knife it may be temporarily distorted from its original molded contour and should be restored to its original shape. A sole receiving means normally lies adja cent to the skiving knife and comprises a pair of spaced forms connected by bolts 122 and 124 thus leaving an intermediate space for a purpose which will presently appear. The forms 120 have a contour like the soles and swing from the normal position to a position beneath a magazine in which the soles are stacked. This swinging mechanism comprises a link 126, pivoted at 128 to one of the forms 120 and to a fixed pivot 130, and a bent link 182 pivoted to the forms at 134 and to the fined pivot 136. The four pivots referred to form the corners of a parallelogram so that the forms are kept horizontal throughout their movement. The sole receiving means is actuated by a horizontal link pivoted to the link 132 and to the rock arm 28. Thus the feed slide and the sole receiving means are actuated simultaneously, but the receiving means carries a sole previously treated while the feed slide is presenting a subsequent one to the skiving mechanism. l/Vhen the spaced forms reach a position beneath the magazine 142 the fork member 144 is reciprocated Vertically between the forms 120 to raise the soles into the magazine. The fork 144 is reciprocated by a pair of parallel links 146 the lower one being pivoted at 148 and the upper one being connected to a rock shaft 150 journaled in the framework. The rock shaft is actuated by a rock arm 152 the lower end of which is pivotally connected to a link 154, the other end of the link being pivoted at 156 to the upright arm 158 of a bell crank level. Another arm 160 of the bell crank lever has a roller running in a. cam groove 162 on the cam disk 72. The soles are maintained in the magazine by pairs of pivoted dogs 164 secured in the sides of the magazine and arranged to yield upwardly as the soles are elevated.

As the soles are presented to the rollers they pass up an inclined guide 166 and are gripped between the feed or pressure roller 168 and the matrix roller 170 immediately behind which is a skiving knife 172. The chips from the lower side of the work slide beneath the skiving knife into the chute 174. The rolls are driven by the following mechanism. At one end of the lower feed roll shaft 176, is a large gear 178 which meshes with a gear (not shown) on a cross shaft 180 (see Fig. Between the ends of the cross shaft 180 is secured a gear 182 which meshes with a mutilated gear 184 fixed to the counter shaft 64. The mutilation of the gear is provided in order to postpone the rotation of the feed rolls until the work has nearly reached them. The matrix roll 17 O is keyed to a shaft 186 having at one end a large gear 188 meshing with an idler gear 190 011 a stub shaft 192, this gear also meshing with a gear 194 at one end of the shaft 180.

The lower feed roll shaft is movably carried in the usual wayby a pivoted lever, extensions 198 of which engage stop screws 200 fixed to the frame work. Springs (not shown) maintain the roll normally in its upper position against the stop screws and allow depression of the roll under certain conditions. The matrix roll shaft 186 is carried by vertically movable bearing blocks 202, the upper ends of which are formed with wedge surfaces for co-operation with wedge blocks formed on a bar 206 adjustable transversely of the frame (see Fig. 6). The bar is spring-pressed by spring 208 towards one limit of its movement which is determined by the engagement of a lug 210 on the bar with an adjusting screw 212 which can be turned by the hand wheel 214. In order to depress the rolls at a predetermined point in the. length of the work, the matrix roll has the following actuating mechanism. Pivoted to the bar 206 is one member 216 of a toggle the other member 218 of which is pivoted at 220 to an arm of a bell crank lever 224 which is pivoted at 222 on the frame. hen the toggle is straightened, the bell crank is turned counter clockwise until its horizontal arm engages the end of an adjusting screw 226 the position of which determines the thickness of the skiving. To straighten the toggle, a link 228 is con nected with the toggle arms and with a lever 230 pivoted on the frame and connected by a link 232 with a horizontal arm 284. (See Fig. 5.) The arm is secured to a rock shaft 236 having a depending arm 238 with a roller running in the peripheral groove 240 on the cam disk 72. It is apparent that the straightening of the toggle will cause the bar 206 and its wedges to move to the left as seen in Fig. 6 thereby depressing the matrix roll and with it the work and pressure roll. The time at which this action takes place will be varied by the angular adjustment of the cam hereinbefore referred to.

Referring to Figs. 9 to 12, a matrix cavity 250 is shown on the matrix roll and around the central portion of the matrix is movably mounted a ring 252 having a matrix filler 254 formed to fill different portions of the matrix cavity depending upon its adjustment. A pusher 256 is carried by the filler and 1S arranged to engage the rear edge of the stock and push it against the knife. When the matrix and the pressure roll are rotated, the filler is delayed a certain amount depending upon the length of the bevel skiving to be placed upon the shank of the sole. The relative adjustment of the filler and the matrix is accomplished by gear teeth on the ring 252 meshing with the teeth of a rack 260 horizontally movable in ways 262 on the frame. To the end of the rack is pivotally connected an arm 264 hung on the rock shaft 266. The shaft is actuated by a sector gear 268 and by a rack 270 formed on the upper end of a vertically movable rod 272, the lower end of said rod being connected to the horizontal arm of a bell crank which swings on the shaft 274. A substantially vertical arm 276 on the bell crank has a roller running in the groove 162 at the far side of the cam disk 72.

Assuming that soles of a given size and shape have been treated on the machine and it is desired to treat a larger size, the feed slide should be delayed relatively to the rollers and so should the matrix filler and the toggle mechanism for depressing the rollers. This is accomplished by the angular adjustment of the cam hereinbefore men tioned. The hub of the spiral gear 68 (see Figs. 1, 5 and 7) has a groove 282 engaged by a forked arm 284 which swings on the shaft 286. A second arm 288 on the shaft is operated by a vertical rod 290 the upper end of which has a ball joint with the end of a lever 292 pivoted at 294 to the frame. The other end of the lever has a hand hold 296 and a pointer 298 movable over an index 800 which designates the angular adjustment of the cam for the different sizes. At the side of the index plate are a series of openings 302 by which the adjusting lever may be pinned in the desired position.

iVith the adjusting lever 292 and the cam 72 controlled thereby in the proper positions, two soles are placed on the slides 14, 14 with the locating pins 16, 16 in the holes and are then moved forwardly a short dis tance by hand. As soon as the lugs 32, 32 pass beyond the dogs 34, the one revolution clutch 48 is engaged and the cam shaft started. The power actuation of the feed slides then occurs under control of the cam 74 although actual movement may be delayed more or less depending on the angular adjustment of the cam. During the forward movement of the slides, the swinging members 90 engage the rear ends of the soles and line them up with the corresponding matrices. The rolls then grip the forepart portions of the soles, the matrices causing the distortion of the soles to begin at locations depending on the delay in the movement of the feed slides relatively to the r0- I. It)

tation of the rolls. As soon as the skiving is started on both sides of the soles, the pins 16 are withdrawn from the holes in the soles through the action of the bell cranks 102 and the stop pins 108. As the rear ends of the soles approach the knife, the matrix fillers which are initially stationary, begin to rotate with the matrix rolls, the timing being likewise controlled by the angular adjustment of the cam so that the distortion of the soles ceases at the desired location. As the beveling action ceases, the matrix rolls are depressed by the toggle mechanism, the timing being also controlled by the angular adjustment of the cam and thereafter the pushers 256 engage the rear ends of the soles and push them against the knife. The soles are delivered on to the forms 120 and as soon as a subsequent pair of soles are fed forward by the feed slides, the forms 120 swing the preceding pair beneath the magazine into which they are raised by the yokes 14A.

Although the invention has been shown and described as embodied in a reducing machine, it should be understood that it is not necessarily limited thereto.

Having described my invention, what I claim as new and desire to secure by Letters Patentof the United States is:

1. A machine of the class described having, in combination, a reducing tool, a roll having a matrix, and a filler adjustable in the matrix cavity to change the form of the matrix.

2. A machine of the class described having, in combination, a matrix roll having a matrix into which a portion of the work is forced to distort it, a reducing tool, means for rotating the matrix roll to carry the work to the reducing tool, and a matrix filler for causing the matrix to cease distortion of the work at a predetermined location.

3. A machine of the class described having, in combination, a matrix roll, a reducing tool, a filler movable with respect to the matrix roll to fill a portion of the matrix cavity, and means for causing relative movement of the filler and the matrix roll.

a. A machine of the class described having, in combination, a matrix roll, a reducing tool, means to rotate the roll, and a filler rotatable on the matrix roll in timed relation to the roll rotating means.

A machine of the class described having, in combination, a matrix roll, a reducing tool, means to rotate the roll, a filler rotatable on the matrix roll in timed relation to the roll rotating means, and means to vary said time relation to cause the filler to fill different portions of the matrix.

6. A machine of the class described having, in combination, a pressure roll, a matrix roll, a skiving knife, a member mounted on the matrix roll and having a slabbed off portion to allow the matrix to act, and a filler portion, to fit a portion of the matrix cavity,

7. A machine of the class described having, in combination, a pressure roll, a matrix roll, a skiving knife, a member mounted on the matrix roll having a filler portion and a sector gear, and a rack for actuating the sector gear to move the filler portion into different portions of the matrix cavity.

8. A machine of the class described having, in combination, a matrix roll, a reducing tool, means to rotate the roll, a feeding member movable to carry the Work to the roll, and means for delaying the movement of the feeding member relatively to the roll rotating means to cause the matrix to engage the work at the desired location.

9. A machine of the class described having, in combination, a matrix roll, a reducing tool, means to rotate the roll, a feed slide to present the stock to the rolls, and means comprising an angularly adjustable cam for varying the movement of the feed slide with reference to the matrix roll.

10. A machine of the class described having, in combination, a pressure roll, a matrix roll into which a portion of the work is forced to distort it, a. skiving knife, a feed member to present the stock to the rolls, means to adjust the feed member to cause the matrix to engage the stock at the desired location, a matrix filler, and means to adjust the filler for causing the matrix to cease its distortion of the stock at the desired location.

11. A machine of the class described having, in combination, a pressure roll, a matrix roll, a skiving knife, means to rotate the rolls, a work feeding member, a matrix filler, and means for simultaneously varying the movement of the feeding member and the matrix filler relatively to the rotating rolls.

12. A machine of the class described having, in combination, a pressure roll, a matrix roll, a skiving knife, means to rotate the rolls, a work feeding member, work LBHIOV- ing means, a matrix filler, and a single cam to vary simultaneously the movement of the feed member, the removing means and the matrix filler relatively to therotating rolls.

13. A machine of the class described having, in combination, a pair of rolls, a reducing tool, means to rotate the rolls, a work feeding member, work removing means, and connections between the feeding member and the removing means to cause the actuation of one by the movement of the other.

14. A machine for reducing the rear end of a sole to a uniform thickness having, in combination, a cutter, means for feeding a sole to the cutter, and means operative at a predetermined location in the length of the sole for producing relative bodily movement of the sole and cutter in a direction transverse to the direction of cut to cause the rear end of the sole to be skived to a uniform thickness.

15. A machine of the class described having, in combination, a pair of rolls, means for rotating the rolls, a skiving knife, and mechanism acting automatically to change the, relation of the axis of one of the rolls with respect to said skiving knife at a predetermined point in the length of the work during the skivingoperation to skive a portion of the work to a uniform thickness.

16. A machine of the class described having, in combination, a pair of rolls, means for rotating the rolls, a skiving knife, mechanism acting automatically to change the relation of the axis of one of the rolls with respect to said knife during the skiving op eration to skive a portion of the work to a uniform thickness, and means for varying the extent of said change in relation, to determine said uniform thickness.

11A machine of the class described having, in combination, a pair of rolls, means for rotating the rolls, a skiving knife, a feed member to carry the work to the rolls, and automatically operated means bodily to move one of the rolls transversely of the line of feed to reduce a portion of the work to a predetermined, uniform thickness.

18. A machine of the class described, having, in combination, a pressure roll, a matrix roll, means for rotating the rolls, a skiving knife, and mechanism to change the relation of the axis of one of the rolls with respect to the knife at a predetermined location of the work to cause a portion of the latter to be skived to a predetermined thickness.

19. A machine of the class described having, in combination, a pair of rolls, means for rotating the rolls, a skiving knife, movable bearings for said rolls, a wedge-carrying bar to move said bearings, and a toggle to actuate said wedge-carrying bar to change the relation of the rolls and knife.

20. A machine of the class described having, in combination, a pair of rolls, means for rotating the rolls, a skiving knife, movable bearings for said rolls, a wedge carrying bar to move said bearings, a bell crank lever, a toggle connected to said bar and to said bell crank lever, means for adjusting the bell crank lever to determine the thickness of the work, and means for straightening the toggle to skive a portion of the work to said predetermined thickness. 7

21. A machine of the class described having, in combination, a pair of rolls, means for rotating the rolls, a skiving knife, movable bearings for one of said rolls, and means operating automatically at a predetermined point in the operationof the machine to move said bearings With respect to sald knife, said means comprising a toggle and mechanism for straightening the toggle,

22. A machine of the class described having, in combination, a pair of rolls, means for rotating the rolls, a skiving knife, movable bearings for said rolls, and automatic means, operative upon the arrival of a pre determined locality of the Work in operative relation to the knife, for changing the posi tion of the'bearings.

23; A machine of the class described hav ing, in combination, a pair of rolls, means for rotating the rolls, a skiving knife, movable bearings for said rolls, wedges to move said bearings, means for limiting the movement of the wedges in one direction to maintain the rolls in a predetermined position during a portion of the skiving operation, and mechanism for moving the wedges in the other direction to cause the rolls to assume a different position with respect to the knife during the remainder of the skiving operation.

24.. A machine of the class described having, in combination, a pair of rolls, means for rotating the rolls, a skiving knife, mech anism for maintaining the relation of the rolls and the knife during a portion of the skiving operation, and mechanism operating automatically for changing the relation of the rolls and knife and then maintaining the changed relation during the remainder of the skiving operation.

25. A machine of the class described having, in combination, a pressure roll, a matrix roll having a matrix into which a portion of the work is forced to distort it, means for rotating the rolls, a skiving knife, a matrix filler for causing the matrix to cease distortion of the Work at a predetermined location, and means for causing a movement of ap proach between the knife and one of the rolls to skive the work to a predetermined thickness beyond said predetermined location.

26. A machine of the class described having, in combination, a pressure roll, a skiving knife, a matrix roll having a matrix formed to bend the edges of a sole blank into the path of the knife, means for rotating the rolls, a matrix filler movable-with respect to the matrix to cause the latter to cease its distortion of the blank, and mechanism for adjusting the rolls with respect to the knife to reduce the rear portion of the blank to a uniform thickness.

27. A machine of the class described having, in combination, a pressure roll, a skiving knife, a matrix roll having a matrix formed to bend the edges of a sole blank into the plane of the knife, means for rotating the rolls, a matrix filler movable with respect to the matrix to cause the latter to cease its distortion of the blank, a pusher carried by the filler for engaging the rear end of the blank to force it against the knife, and mechanism for moving the rolls nearer to the knife to reduce the rear end portion of the blank to a uniform thickness.

28. A machine of the class described hav ing, in combination, a pair of feed rolls, a skiving knife, and a pusher constructed and arranged to engage the rear edge of the stock near the end of the skiving operation to push the rear end of the stock past the bite of the rolls and against the knife.

29. A machine of the class described having, in combination, a matrix roll, a reducing tool, and a pusher rotatable with the matrix roll to engage the rear edge of the stock to carry it positively past the reducing tool.

30. A machine of the class described having, in combination, a pressure roll, a matrix roll; a skiving knife, and a pusher rotatable with one of the rolls to push the rear edge of the stock against the knife.

31. A machine of the class described hav ing, in combination, a pressure roll, a matrix roll, a skiving knife, means to rotate the rolls, a pusher carried by the matrix roll. and arranged to push the rear end of a piece of stock of a given length to the knife, and means to adjust the pusher relatively to the matrix to cause it to engage similarly a piece of stock of a different length.

32. A machine of the class described having, in combination, a pressure roll, a matrix roll, a skiving knife, means to rotate the rolls, a pusher mounted on the matrix roll to engage the end of a piece of stock'to push it to the skiving knife, means for delaying the action of the feeding means to cause the matrix to engage the stock at the desired location, and means for delaying the action of the pusher to correspond.

33. A machine of the class described having, in combination, stock treating mechanism, a feed member for carrying the stock to the mechanism, power driving means for the feed member, and mechanism controlled by a limited hand movement of the work for connecting said power driving means to said feed member.

34. A machine of the class described having, in combination, stock reducing mechanism, a pair of feed members to carry the stock to the reducing mechanisnii, power driving means for the feed members, a clutch, and controlling mechanism for the clutch, operable only when both feed members are moved a limited distance by hand.

35. A machine'of the class described having, in combination, stock reducing mechanism, a pair of feed members, a lever con nected to each feed member, power driving means for the feed members having lost motion connection with the levers, a clutch, and mechanism whereby a limited movement of both levers with respect to said power driving means controls the clutch.

36. A machine of the class described having, in combination, a pair of rolls, a skiving knife, a pair of feed members for presenting the work to the rolls, a clutch, a clutch con trolling member, and means movable with. each feed member and normally engaging said clutch controlling member to prevent operation of the clutch unless both feed members are moved.

37. A machine of the class described having, in combination, a pair of rolls, a skiving knife, means for rotating the rolls, a pair of feed slides, a lever connected to each slide, a clutch, a pair of dogs to control the clutch, a spring tending to move the dogs and engage the clutch, means on each lever normally preventing movement of one of the dogs, and rigid connections between the dogs whereby both must be released by movement of the lovers before the clutch is engaged.

38. A machine of the class described hav ing, in combination, mechanism including a matrix roll for operating upon a sole which is provided with a locating opening, a feed carriage adapted to support the sole and advance it to the matrix roll, and a member connected with the carriage and adapted to enter the opening to locate the solo width.- wise of the matrix.

39. A machine of the class described having, in combination, iechanism for operating on a sole, and means for locating said sole with respect to said. operating mechanism, said means comprising a locating pin constructed and arranged to enter, a hole in the sole, and a member for engaging the sole at another locality to move it into proper angular position about the axis of said pin.

40. A machine of the class described having, in combination, mechanism for operating on a sole with a straight edge in its margin, and means for locating said sole with respect to said operating mechanism, said means comprising an abutment for engagement with the straight edge of the sole and a member engaging the sole at a point within its margin, said abutment and member being movable relatively to one another to swing the sole about the member.

41. A machine of the class described having, in combination, mechanism for operating on a short outsole with a plane surface at its rear end, and means for locating said sole with respect to said operating mechanism, said means comprising a member for engagement with the plane surface of the sole, and a pin engaging the sole in another locality, said pin and member being movable relatively to one another to swing the sole about the pin.

42. A machine of the class described having, in combination, mechanism for operating on a short outsole, and means for locating said sole with respect to said operating mechanism, said means comprising a pin arranged to enter an opening in the sole, a member for engagement with the rear end of said sole, and means for causing relative movement of the pin and the member to align the sole with the operating mechanism.

43. A machine of the class described having, in combination, mechanism for operating on a short outsole, and means for locating said sole with respect to said operating mechanism, said means comprising a pin arranged to enter an opening in the sole, a member for engagement with the rear end of said sole, and automatic means for moving said member against the rear end of the sole to align the sole with the operating mechanism.

44. A machine of the class described having, in combination, mechanism for operating on a short outsole, and means for locating said sole with respect to said operating mechanism, said means comprising a pin arranged to enter an opening in the sole, and a member having a contact portion at each side of the pin and constructed and arranged to engage the rear end of said sole to swing it about the pin into proper alignment with said operating mechanism.

45. A machine of the class described having, in combination, mechanism for operating on a sole, and means for locating said sole with respect to said operating mechanism, said means comprising a pin arranged to enter a hole in the sole, and a swinging member for engaging the sole to swing it around the pin into alignment with said operating mechanism.

4.6. A machine of the class described having, in combination, mechanism for operating on a sole, and means for presenting said sole to said operating mechanism, said means comprising a slide having a pin to enter a hole in the sole, a member carried by the slide for engaging the sole to swing it into alignment with the operating mechanism, and means for moving the slide to carry the sole to the operating mechanism.

47. An apparatus for feeding a sole blank to the matrix of a reducing machine having, in combination, a feed slide having a pin to enter a hole in the sole, and a member car ried by the slide for engaging the rear edge of the sole to straighten it with respect to the matrix.

48. An apparatus for feeding a short sole blank to the matrix roll of a reducing machine having, in combination, a feed slide having means to locate a point in the median line of the sole, a member having spaced fingers arranged with their sole engaging edges on a line parallel to the axis of the matrix roll, and means for pressing said edges of the fingers against the rear edge of the-sole to hold the sole in line with the matrix.

49. An apparatus for feeding a sole blank to the matrix of a skiving machine having, in combination, a feed slide having means to locate accurately one point in the surface of thesole, a swinging member pivoted to the slide, and means actuated by the movement of the slide for swinging said member against an edge of the sole to line up said sole with the matrix.

50. An apparatus for feeding a sole blank to the matrix of a skiving machine having, in combination, a feed slide having a pin to enter a hole in the sole, a swinging member carried by the slide for engaging the rear edge of the sole, a spring engaging the swinging member to move it against the sole, and a cam for controlling the movement of said swinging member under the influence of the sprin 51. An apparatus for feeding a sole blank to the matrix of a skiving machine having, in combination, a feed slide having a pin to engage a hole in the sole, a member for engaging the rear end of the sole to hold the sole in line with the matrix, means for actuating the slide, and means for causing said sole engaging means to release the sole after the skiving operation begins.

52. An apparatus for feeding to an operating mechanism a series of blanks each having in it a locating hole, said apparatus having, in combination, a normally stationary feed member having an upstanding pin whereby the operator may place the blanks one by one upon the member with the pin entering the hole, treadle controlled means for actuating the feed member once, and means for withdrawing the pin from the hole.

53. In an apparatus for feeding a blank to an operating mechanism, a feed slide having a-pin to enter a hole in the blank, means for actuating the feed slide, and means actuated in the movement of the slide for withdrawing the pin from the blank after the latter reaches the operating mechanism.

54. In an apparatus for feeding a blank to the rolls of a skiving machine, a feed slide having a pin to enter a hole in the blank, means for actuating the feed slide, a bell crank lever having toothed connections with said pin, and means engageable with the bell crank lever to withdraw the pin from the blank.

55. In an apparatus for feeding a blank to the rolls of a skiving machine, a feed slide having a pin to enter a hole in the blank, means for actuating the feed slide, a toothed member carried by the slide and engaging said pin, and means operating automatically in the movement of the slide for moving said toothed member to actuate the pin.

56. In an apparatus for reducing molded soles, a reducing tool, a matrix roll, means to feed a sole to the roll, and sole receiving means having a supporting surface to conform approximately to the original contour of the sole.

57. In an apparatus for skiving molded soles, a skiving knife, 2. pressure roll, a matrix roll, means to feed the soles one by one to the rolls, sole receiving means comprising a pair of connected forms having approximately the original contour of the sole, and means operating between the forms to position the soles one by one at the bottom of a magazine.

58. In an apparatus for skiving molded soles, a skiving knife, a pressure roll, a matrix roll, means to feed the soles one by one to the rolls, solereceiving means having a supporting surface conforming approximately to the original contour of the soles, means to actuate the receiving means to carry the soles one by one beneath a magazine, and means for raising the soles one by one into the magazine.

59. A machine of the class described having, in combination, a feed roll, a matrix roll, a skiving knife, bearings for the rolls movable in a path transverse to the cut of the knife, means for rotating the rolls to cause a blank to be distorted and thus fed to the knife, and automatic means becomingoperative at a predetermined point in the skiving operation to force the bearings of one roll toward the plane of feed of the blank.

60. A machineof the class described having, in combination, a feed roll, a matrix roll, a skiving knife, bearings for the rolls movable in a path transverse to the cut of the knife, means for rotating the rolls to cause a blank to be distorted and thus fed to the knife, and automatic means becoming operative at that point in the skiving operation at which the distortion due to the matrix ceases to force the bearings of one roll toward the plane of feed of the blank.

61. An apparatus for feeding to operating mechanism blanks each of which has an opening therein located in the same position, comprising a feed slide, a member carried thereby and adapted to enter the opening, means for reciprocating the slide to cause it to present a blank to the operating mechanism, and then to return to initial position, means for Withdrawing the member from the opening when the presentation has been accomplished, and means for returning the member into position to be engaged with the opening in a succeeding blank.

62. An apparatus for feeding a blank to mechanism for operating upon the blank having, in combination, a feed member, means for moving the feed member toward the operating mechanism, a pin carried by the feed member and adapted to enter an' opening in the blank, and means for withdrawing the pin from the opening while the feed member is movin toward the operating mechanism.

63. A machine of the class described having, in combination, a pair of feed rolls, a skiving knife to which the work is advanced by the rolls, a pusher, and means for operating the pusher constructed and arranged to maintain said pusher out of contact with the work during the major portion of the skiving operation and to cause it to engage the rear end of the Work near the end of the skiving operation to push the rear end of the work to the knife, after said rear end has passed from between the bite of the rolls.

64:. A machine of the class described having, in combination, a matrix roll, a presser for holding the work in the matrix, a skiving knife for operating upon the work so held, means for rotating the roll, a pusher, and means constructed and arranged to maintain said pusher in inoperative position during the major part of the skiving operation and to bring it into operative position during the latter portion of said operation.

65. A machine of the class described having, in combination, mechanism for operating upon a blank, and means for locating the blank with respect to said operating mechanism, said means comprising a pin adapted to enter a hole in the blank, a member for engaging the blank at another locality, and means for causing relative movement between the pin and the'member to move the blank into proper angular position about the axis of the pin.

66. A machine of the class described hav ing, in combination, a member for operating upon a blank, a roll having a matrix to receive the blank, and a filler adjustable in the matrix cavity to change the form of the matrix.

67. A machine of the class described having, in combination, a matrix roll to support a blank, a tool for operating upon the blank, means for rotating the roll, and a filler rotatable on the matrix roll to change the shape of the matrix.

68. A machine for treating a sole blank of a shape such that different portions of the same surface thereof lie in different planes having, in combination, means for distorting the blank, means for operating upon the blank while it is distorted, and means for thereafter acting upon the blank in a manner to restore its original shape.

In testimony whereof I have signed my name to this specification.

ERIC A. HOLMGREN. 

